Where next?

Time

Just how long is 1 millisecond?

One millisecond is one thousandth of a second (10⁻³ s).

In a blink

1 ms

Scale

ELAPSED TIME

1 millisecond

Time conversions use a Julian year of exactly 365.25 days.

1 msTime
0
Camera flash

A camera flash is a brief, intense burst of light used to illuminate a scene for photography.

1 msTime
0
Both timelines start together. Length measures elapsed time, not a physical distance.

A little perspective

1 millisecond is approximately equal to the duration of a camera flash.

Measurements, assumptions & sources +

1 millisecond

Time: 1 ms; definition.

Time conversions use a Julian year of exactly 365.25 days.

NIST — SI conversion factors

Camera flash

Time: 1 ms; reference interval.

A chosen 1 ms flash duration; equipment varies.

Defined examples — our methodology

The marked time is calibrated. Unmeasured illustration details are representative.

Measurement details

Why these numbers?

Compare 1 millisecond with the duration of a camera flash. The notes below explain how each value was chosen.

1 millisecond

1 ms

Time · definition

Time conversions use a Julian year of exactly 365.25 days.

Camera flash

1 ms

Time · reference interval

A chosen 1 ms flash duration; equipment varies.

Comparing
Time ↔ Time
Relative size
1 millisecond is approximately equal to the duration of a camera flash.

How to read the visual

The diagram uses the recorded measurements. Details outside the marked spans do not set the scale.

  • The duration of a camera flash: The measurement is labelled reference interval. Check the source notes for its basis.

A duration is an interval, not a calendar date.

0.001 sseconds
2.7778 × 10⁻⁷ hhours
1.1574 × 10⁻⁸ daysdays
3.1688 × 10⁻¹¹ yearsyears

Change your perspective

Put it next to…

Choose a suggestion to redraw the comparison, or open its page to learn what it is.

About this thing
About this thing
About this thing
About this thing
About this thing
About this thing

The full collection

Choose something to compare.

Loading compatible things…

A little smaller. A little larger.

Keep exploring time.

See all ↗

Share a little perspective.